Home / 156,746.34-216,309.88-85,126.38

Finding the Fourth Proportional to 156,746.34, 216,309.88 and 85,126.38

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Solution

The fourth proportional to 156,746.34, 216,309.88 and 85,126.38 is: 117,474.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,746.34 : 216,309.88 = 85,126.38 : x
  2. Step 2: Convert to fraction form
    156,746.34/216,309.88 = 85,126.38/x
  3. Step 3: Cross multiply
    156,746.34x = 216,309.88 × 85,126.38
  4. Step 4: Simplify right side
    156,746.34x = 18,413,677,042.63
  5. Step 5: Solve for x
    x = 18,413,677,042.63/156,746.34
  6. Step 6: Final answer
    x = 117,474.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.